vpar Monitor upgrade.

[fizan]

Hi Experts,

Currently the v-par monitor version & partition:
vparstatus -P
Current Virtual Partition Version: A.04.05
Monitor Version: A.04.05

vpar1:A.04.05 11:23
vpar2:A.04.05 11:23
vpar3:A.04.05 11:23

***Now i need to have the 4th vpar as 11:31***
so i need to install the vpar monitor with
vPars monitor (A.05.01) deleting the(A.04.05)

vpar4:A.05.01 11:31 correct, if am wrong advice me.

for this needs to be done:

1. shutdown all running 3-Vpars
2. MON>reboot --- boot into n-par0 mode.
3. In the napr0 delete the monitor-sw(A.04.05)
4. Install the (A.05.01)monitor on n-par0
5. After that reboot to ISL>hpux /stand/vpmon
6. Load all 3 v-pars
7. Then create the 4th v-par from running v-par
8. Boot from tape.

Am bit worried:: Instead of deleting the
A.04.05 & installing this Sw A.05.01 is Migration possible for new vpmon--A.05.01

Thanks

[Vivek_Pendse · Accepted solution]

Hi,

Do the below procedure:
1. shutdown & boot the system with 11.31 DVD-ROM. Install OS on new HDD (which will be allocated to new 11.31 vpar).
2. After os installation, install vpar A.05.01 software.
3. Then recreate 11.23 vpars.
4. Then boot the system back in vpar mode from monitor of 11.31 i.e. A05.01.

Please note: Always, you have to boot the 11.31 monitor first & then only you can boot the 11.23 vpars.
If you fail & 11.23 vpar monitor boots first, then 11.31 vpar won't be booted.

Hope, this helps you.

Thanks,
Vivek

[Torsten.]

The manual has several update scenarios, but your plan sounds reasonable too.

Better to cold install the 11.31 vPar in nPar mode, but your plan is also worth to try.

As said, the 11.31 vpmon (version 5.xx) must always be used in a mixed installation.

[fizan]

Vivek,

So i should get down to n-par0 & while try to load the 11:31 from the ignite tape, i should boot in the new Hard disk & after OS installation complete i need to install the new vpon A.5.0.1.

1.boot into n-par0
2.select the tape of 11:31 to install os on new hard disk
3.Install the A.5.0.1 in the neww hard disk.
4.then boot the server into ISL>hpux /stand/vpmon
5. start the 11:31 v-par first 4th -vpar.
6. start the rest 3 11:21 v-pars existing old.

[Vivek_Pendse]

Yes, exactly.
The vpdb will be re-created/over write on existing 11.23 vpars.
Here, your Master monitor will be always from 11.31 vpar. The resource allocation/modification, will only be done thr' 11.31 vpar monitor as it's master in mixed environment.

[fizan]

Tortsen,

can you help me to get clear idea on this::

"Better to cold install the 11.31 vPar in nPar mode"

can you share me some points how to perform this.

[fizan]

Vivek,

Thanks for your solutions,

still is it safe to proceed with this.
Can you clear me on this:

1.By default the vpar monitor vpmon> sits on the n-par right, after the v-par sw installed on the respective n-par ?

2.On n-par0 when v-pmon A4.5.7 is deleted & installed with A.5.0.1 whether the vpdb will automaticlly store all the old v-par configurations, after we boot into the v-par mode?

3.There will be any change in the monitors boot path bcoz now we are going to install the 11:31 on new disk, so path will change from old monitor path to this 11:31 disk path?

4.****Re-create of 11:23 v-pars? what should i perform here again after booting up the new A.5.0.1 monitor after start the 11:31 v-par, next is should build from scratch the other 3-v-pars of 11:23 do you refer this one?

Thanks

[Vivek_Pendse]

Hi,

vpmon never sits on npar..
It's like: suppose you have 4 os vpars on npar. Then, you have a choice to boot npar from any os (vpar). Then, vpmon of that os will boot.

And, cold installation is a installation either from DVD or from ignite-ux installation.

As mentioned, you have to shutdown the npar. Then boot the npar from 11.31 DVD & install OS on new disk (which will be assigned to 11.31vpar) & then install vpar sw of 11.31.
Then re-create all other vpars & boot them.

Hope, this helps you.

Thanks,
Vivek

[Torsten.]

You should read the chapter

Updating from vPars A.04.xx to Mixed HP-UX 11i v2/v3 vPars (A.04.xx and A.05.xx)
Environmentâ (page 100)

in the guide. This should help.


Install version A.05.07.

[Torsten.]

However, I would first create the 4th vpar. Then boot in nPars mode and install 11.31 together with vPars software on an empty disk. Then copy the vpdb file into stand.
Boot in vPars mode from this disk. You now should have all 4 vPars up.

[fizan]

Vivek,

4.****Re-create of 11:23 v-pars? what should i perform here again after booting up the new A.5.0.1 monitor after start the 11:31 v-par, ???next is should build from scratch the other all 3-v-pars of 11:23 do you advice this one???

am bit worried bcoz the app owner's are informed only for server shutdown i.e 3 -vpar's will be down for 5 hrs, how can i re-create it?

[Vivek_Pendse]

No need to worry :)
Before doing this activity, you have to take backup of all vpar paths i.e. hw paths, cpu, memory whichever are assigned. i.e. with the command # vparstatus -v
Or, you can get a script from HP; called vpars-collect.sh

Once you install 11.31 on npar (on new disk), then you have to just re-create existing 11.23 vpars. So, the hw paths will be remained same & it (11.23 os) would boot as was before.

Re-creating vpar means, just we are creating the vpar with same hw path & cpu, memory resources.

Thanks,
Vivek

[Torsten.]

You have several ways to reach the goal.

The problem is, you need to boot from the version 5 vpmon (11.31) and once this is done, you can only do modifications from the version 5 vPar.


You can do what I wrote earlier or even really consider to re-create the other vPars.


Re-create here means you create the vPars definition, not the OS - the OS remains.



The problem is you need to put the new vpmon on a new disk and merge the existing configuration into. Since vpmon resides in /stand, you need a valid LVM structure on the new disk.


So you can
- create the 4th vpar, then install 11.31 in npar mode.
or
- install 11.31 in npar mode, bring the "old" vpdb in place, then create the 4th vpar the reboot in vPars mode
or
- install 11.31 in npar mode, create the 4th vPar (this is the only vPar now). Re-create the other vPars and boot in vPars mode.




You may minimize the downtime by installing 11.23 in the 4th vPar, the update to 11.31. So you need a single reboot from the new vpmon only - but this update may or may not produce other problems with the OS itself.

[fizan]

@ Vivek:

Thanks:
1.Now i got it, after booting up according to your steps i need to just use vparcreate cmd with old HW paths for all existing 3 v-pars.

**In this after vpar creation it comes to:MON
then as follows am i correct plz?

MON> vparload -p vpar1 -B oldpath
MON> vparload -p vpar2 -B oldpath
MON> vparload -p vpar3 -B oldpath
MON> vparload -p newvpar4 -B TAPE 11:31 OS

@ Tortsen:

Thanks
as i prefer to go with 1st one::
1. creation of the 4th vpar,
2. Then install 11.31 in npar mode new disk
3. boot in v-par mode
===========================================

One common question is my BASE OS now is 11:23 in n-par0, after the V-pmon upgrade
my n-par0 BASE OS will change as 11:31 with A.5.0.1 v-par sw correct?

Thanks

[Vivek_Pendse]

Hi,

When you have installed 11.31 on new disk in npar. Then you will re-create old 3 vpars with their existing hard paths.

After that, you will reboot the npar & you will boot it from 11.31 vpar & will come to
MON> --> of 11.31

From here:
just do --> vparboot -p

No need to mention, the -B old path --> as you have already mentioned, while re-creation of vpar.

Also, I didnot understand, why did you mentioned:

MON> vparload -p newvpar4 -B TAPE 11:31 OS

Thanks,
Vivek

[fizan]

>>Also, I didnot understand, why did you mentioned:

MON> vparload -p newvpar4 -B TAPE 11:31 OS<<<<

Bit confused:
After the chnages:
1. n-par0 will be run on 11:31 OS
2.At the
n-par0# vparcreate -p with old paths,
correct or wrong ?
3. After boot in v-par mode
4. now all the 4-vpars will be up in A.5.1 sw
=====================================
>>Also, I didnot understand, why did you mentioned:

MON> vparload -p newvpar4 -B TAPE 11:31 OS<<

Vivek:will vparload cm wil work in MON> promt?

=========================================

>>From here:
just do --> vparboot -p <<<<

from here states on the login of vpar1# right?

[Vivek_Pendse]

Yes, exactly.
No need to boot from the tape again. As you will be installing 11.31 os with it's vpar on new disk & re-creating old vpars.
So, just boot from the new 11.31 vpar os & monitor & just boot all the vpars e.g. vparload -all

[fizan]

Thanks vivek -San:

very much thanks will summarize the activity & update you by EOD

[fizan]

Summ::

1. shutdown all the running 3 v-par's
2. from MON> reboot
3. ISL> hpux --- n-par0 logged in.
4. nparo# Delete the A.4.5.7 v-par SW.
5. Install the 11:31 on the new hard disk {tape or dvd is best for 11:31 restoration?}
6. Install the A.5.0.1 v-par SW on new HDD
7. set the primary boot path for the new vp-MON:
8. vparcreate -p with old path : just allocating the HW resources to v-pars.
9. nparo# vparstatus --- now should show N/A on all patitions
8. npar0# shutdown -ry 0
9. Interpt at ISL > hpux/stand/vpmon -a or /hpux/stand/vpmon
10 **first need to boot 11:31 v-par**then other 3v-pars 11:23 will be booted up. mixed


11. whether i need to take the /stand/vpdb copy before shut the v-pars on A.4.5.7 version ?
12. Are it will re-create automatically when i boot up the v-pars on A.5.0.1. ?

Any other or Any steps missed out?

[Vivek_Pendse]

These steps are not required.
3. ISL> hpux --- n-par0 logged in.
4. nparo# Delete the A.4.5.7 v-par SW.

No need to worry, this is tested solution.
Go ahead & install the os & vpars software on new disk. Just ensure the ignite backup of all vpars beofre acitivity.

Thanks,
Vivek